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Bill reveals the long-lost methods used by Medieval engineers to design stone cathedrals. Methods that required no science, ...

Charles Parsons designed a superior steam engine called a turbine, but was ignored until he crashed a celebration of Queen ...

Bill details the engineering choices underlying the design of a beverage can He explains why it is cylindrical, outlines the ...

Semiconductors are in everything from your cell phone to rockets. But what exactly are they, and what makes them so special?

A few things that can go very wrong when you put steam in a pipe... Last month we talked about the damaging effects of water ...

Dirt is probably the cheapest and simplest construction material out there, but it's not very strong compared to other choices.

Bill shows how the three key characteristics of laser light - single wavelength, narrow beam, and high intensity - are made.

Bill shows the world's smallest atomic clock and then describes how the first one made in the 1950s worked. He describes in ...

A whistle-stop tour of how computers work, from how silicon is used to make computer chips, perform arithmetic to how programs ...

Bill reveals the operation and engineering design underlying the famous drinking bird toy. In this video he explores the role ...

The evolution of the magnetron — a device for generating microwave radiation — from World War II radar systems to the ...

Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can ...

Bill takes apart a smartphone and explains how its accelerometer works. He also shares the essential idea underlying the MEMS ...

Learn how the most important component in your device works, right here! Author's Website: http://www.buthowdoitknow.com/ See ...

Bill details how a microwave oven heats food. He describes how the microwave vacuum tube, called a magnetron, generates ...

Bill explains that the hardest step is making the proper type of uranium. Weapons and power plants require uranium that contains ...

Two examples of how engineers solve problems _before_ they have scientific certainty: How they control whether or not fluid flow ...

Bill details the key engineering principles underlying plastic injection molding. He describes its history and, then, reveals the ...

Learn how and why structural plates deflect as they do. To learn more or to see additional models, go to ...

Bill describes how metals like aluminum and titanium are made resistant to corrosion by growing an oxide layer into the metals.